Okay,here is attempt....#4? I think? Left the rear end of the tail section alone and took 1 1/2" off the front,for more seat room to allow for padding. I didnt lower the front panel,just sliding it back help to add more slope
Also put temporary extensions on to cover the frame.Looked bad

The tank and seat are above the frame,the tail piece needs to be also.
Tried to prop up some pieces of plywood to give an idea of it with seat on for better dimensions to look at.
I know you guys like the rounded tails,and they are cool

but im pretty happy with this one...i think

Whaddya think.Be honest.
And Tools,that dent is more like a ding.The reflection makes it look 4 times what it really is.Not even a 1/16" deep

Shortened with longer seat area

Extension added...not a good idea

Faux seat added...eat you heart out Daddyman!